1.

A plane em wave of wave intensity of \[10\,W/{{m}^{2}}\] strikes a small mirror of area 20\[c{{m}^{2}}\], held perpendicular to the approaching wave. The radiation force on the mirror will be

A. \[6.6\times {{10}^{-11}}N\]     
B. \[1.33\times {{10}^{-11}}N\]
C. \[1.33\times {{10}^{-10}}N\]
D. \[6.6\times {{10}^{-10}}N\]
Answer» D. \[6.6\times {{10}^{-10}}N\]


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